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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIAN GAIDA PHAM NP
NPI 1124615695
Nurse Practitioner - Gerontology in Beavercreek, OH

Active since December 30, 2020PECOS EnrolledAccepts Medicare Assignment
3535 PENTAGON BLVD, BEAVERCREEK, OH 45431(937) 395-6665(937) 395-6668 Get Directions Write a Review

NPPES record last updated: October 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 16, 2026, Mar 10, 2026, Apr 18, 2022 and 2 more (5 updates tracked since 2020).

About Marian Gaida Pham Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIAN GAIDA PHAM NP (NPI 1124615695) is an individual gerontology provider in Beavercreek, Ohio, licensed in Indiana (71010705A) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS, is affiliated with Miami Valley Hospital, and maintains a secondary practice location in Tucson.

NPPES Registry Identity

NPI1124615695
Entity TypeIndividualFemale
Primary Taxonomy363LG0600X
Provider Legal NameMARIAN GAIDA PHAMCredential: NP
Location Address3535 PENTAGON BLVDBeavercreek, OH 45431-1705
Mailing Address1 Prestige Pl Ste 550Miamisburg, OH 45342-6115 · (937) 762-1310
Phone(937) 395-6665
Fax(937) 395-6668
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateDecember 30, 2020
Last NPPES UpdateOctober 16, 20265 updates tracked since enumeration
NPPES CertifiedOctober 16, 2026
✔ NPI 1124615695 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · GerontologyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LG0600X
License✔ Licensed in IN · 71010705A
Also ListedRegistered NurseTaxonomy 163W00000X · License 28191443A (IN)
Also ListedNurse Practitioner · Critical Care MedicineTaxonomy 363LC0200X · License 343112 (AZ)
3535 PENTAGON BLVD, Beavercreek, OH 45431
Open in Google Maps ↗

Other Names 1

Former Name (1)Marian Duselis

Secondary Practice Location 1

Location 11625 N Campbell AveTucson, AZ 85719-4330 · Phone (520) 694-0111

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource, Molina Healthcare and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marian Gaida Pham Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1658784061
PECOS Enrollment IDI20220502000160
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Marian Pham reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Premier Health Specialists Inc
5.7 mi
Clinical Nurse Specialist
1 WYOMING ST, SUITE 4490
Dayton, OH 45409
  • Reassigned Medicare billing, Ohio enrollment
  • 812 clinicians in this Medicare group
NPI 1386980522 (937) 208-5287
Kettering Independent Medical Group Inc
13 mi
Orthopaedic Surgery
1 PRESTIGE PL, SUITE 910
Miamisburg, OH 45342
  • Reassigned Medicare billing, Ohio enrollment
  • 984 clinicians in this Medicare group
NPI 1629387865 (937) 762-1629
Community Physicians Of Indiana Inc
106 mi
Family Medicine
7240 SHADELAND STATION, SUITE 300
Indianapolis, IN 46256
  • Reassigned Medicare billing, Indiana enrollment
  • 2,087 clinicians in this Medicare group
NPI 1619105244 (317) 355-5555
University Surgeons, Inc.
112 mi
Surgery
1701 N SENATE BLVD
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 199 clinicians in this Medicare group
NPI 1316966229 (317) 944-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
17 services17 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Miami Valley Hospital

Acute Care Hospitals · Dayton, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360051
LocationOne Wyoming StreetDayton, OH 45409 · Montgomery County
Emergency services Birthing friendly

Soin Medical Center

Acute Care Hospitals · Beaver Creek, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360360
Location3535 Pentagon Park BlvdBeaver Creek, OH 45431 · Greene County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45431 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.72 typical visit price
range $54.34 – $166.65
Typical copayment $21.18 (range $13.58 – $41.66)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ASHLEY GEORGE
Nurse Anesthetist, Certified Registered
3535 PENTAGON BLVD
BEAVERCREEK, OH 45431
Greene County (937) 702-4000
EMILY GRACE TROMPAK (O'NEAL) PA-C
Physician Assistant (Medical)
3535 PENTAGON BLVD
BEAVERCREEK, OH 45431
Greene County (937) 702-4450
DR. ADELAIDE OMANE CRNA
Nurse Anesthetist, Certified Registered
3535 PENTAGON BLVD
BEAVERCREEK, OH 45431
Greene County (937) 702-4000
GREENE MEMORIAL HOSPITAL SERVICES, INC
Obstetrics & Gynecology
3535 PENTAGON BLVD, SUITE 220
BEAVERCREEK, OH 45431
Greene County (937) 429-7350
DR. DANIEL B LUCKENBILL MD
Orthopaedic Surgery (Sports Medicine)
3535 PENTAGON BLVD, STE 320
BEAVERCREEK, OH 45431
Greene County (937) 433-5309
MR. AARON THOMAS WELLY ACNP-AG
Nurse Practitioner (Acute Care)
3535 PENTAGON BLVD
BEAVERCREEK, OH 45431
Greene County (937) 395-6665
MRS. RAEANNE HUNTER FONDRIEST AG-ACNP
Nurse Practitioner (Acute Care)
3535 PENTAGON BLVD
BEAVERCREEK, OH 45431
Greene County (937) 702-4024
DARLA RAE BAKER CNM
Advanced Practice Midwife
3535 PENTAGON BLVD, SUITE 220
BEAVERCREEK, OH 45431
Greene County (937) 429-7350

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marian Pham's NPI number?

The NPI number for Marian Pham is 1124615695. It was assigned to this individual provider in the NPPES registry on December 30, 2020. The provider is also known as Marian Duselis.

Where is Marian Pham located?

Marian Pham practices at 3535 Pentagon Blvd, Beavercreek, OH 45431. The listed phone number is (937) 395-6665.

What is Marian Pham's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.

Is Marian Pham enrolled in Medicare?

Yes. Marian Pham is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Marian Pham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marian Pham reassigns Medicare benefits to 4 organizations: Premier Health Specialists Inc (Dayton, OH), Kettering Independent Medical Group Inc (Miamisburg, OH), Community Physicians Of Indiana Inc (Indianapolis, IN) and University Surgeons, Inc. (Indianapolis, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marian Pham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marian Pham accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource, Molina Healthcare and Oscar Health Insurance list Marian Pham as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Marian Pham affiliated with any hospitals?

According to CMS data, Marian Pham is affiliated with Miami Valley Hospital and Soin Medical Center.

When was this NPI record last updated?

The NPPES record for Marian Pham was last updated on October 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.